18716643

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:385

約数の個数: 48

約数和(自身を含む): 32366880

約数和(自身を除く): 13650237

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 121, 153, 187, 297, 337, 363, 459, 561, 1011, 1089, 1683, 2057, 3033, 3267, 3707, 5049, 5729, 6171, 9099, 11121, 17187, 18513, 33363, 40777, 51561, 55539, 63019, 100089, 122331, 154683, 189057, 366993, 567171, 693209, 1100979, 1701513, 2079627, 6238881, 18716643]

約数ペア:

[(1, 18716643), (3, 6238881), (9, 2079627), (11, 1701513), (17, 1100979), (27, 693209), (33, 567171), (51, 366993), (99, 189057), (121, 154683), (153, 122331), (187, 100089), (297, 63019), (337, 55539), (363, 51561), (459, 40777), (561, 33363), (1011, 18513), (1089, 17187), (1683, 11121), (2057, 9099), (3033, 6171), (3267, 5729), (3707, 5049)]